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Studies on the Rheological Behavior of Polycarbosilane Part I: Effect of Time, Temperature and Atmosphere

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Abstract

Silicon carbide based fibers are generally prepared by the melt spinning of ceramic material precursors like polycarbosilane (PCS) and the hetero-metal substituted derivatives (M-PCS). Therefore, the rheological behaviour of PCS in the melt with respect to time, temperature, atmosphere, molecular weight and polydispersity becomes very important for successful processing and for preparing green fibres. In the present study PCSs having different softening points were synthesized via the thermal backbone rearrangement of polydimethylsilane (PDMS) and their melt viscosity variation and thermosetting behavior were studied. Various conditions like, atmosphere (inert & air), temperature, time and shear rate were chosen as variables. In an inert atmosphere, the viscosity of all the PCSs decreases with increasing temperature then under isothermal conditions it remains almost constant for the low softening point samples (high polydispersity) whereas it rises for the high softening point samples (low polydispersity). It has been observed that invariably all of the PCSs crosslinked rapidly in air as compared to in an inert atmosphere of argon. The effect of temperature was found to be prominent with the increase in SiH/SiCH3 ratio and the processing time reduces with an increase in processing temperature. The high molecular weight PCS thermosets easily due to enhanced crosslinking of the polymer as compared to low molecular weight PCS irrespective of the atmosphere. Thus, for processing of PCS it is essential to have a polydisperse sample and to maintain an inert atmosphere to prevent undesired crosslinking.

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References

  1. Dicarlo JA, Yun HM, Morscher GN, Bhatt RT (2004) In: Bansal NP (ed) Handbook of ceramic composites. Kluwer Academic Publishers, Boston

    Google Scholar 

  2. Nishio S, Ueda S, Kurihara R, Kuroda T, Miura H, Sako K, Takase H, Seki Y, Adachi J, Yamazaki S, Hashimoto T, Mori S, Shinya K, Murakami Y, Senda I, Okano K, Asaoka Y, Yoshida T (2000) Fusion Eng Des 48(3–4):271–279

    Article  CAS  Google Scholar 

  3. Jones RH, Henager CH (1995) J Nucl Mater 219:55–62

    Article  CAS  Google Scholar 

  4. Urano A, Sakamoto J, Takeda M, Imai Y, Araki H, Noda T (2008) Ceram Eng Sci Proc 19(3):55–63

    Google Scholar 

  5. Ichikawa H, Ishikawa T (2000) In: Kelly A, Zweben C, Chou T (eds) Comprehensive composite materials, vol. 1. Elsevier Science Ltd, Oxford

    Google Scholar 

  6. Taked M, Sakamoto J, Saeki A, Imai Y, Ichikawa H (1995) Ceram Eng Sci Proc 16(4):37–44

    Article  Google Scholar 

  7. Tanaka T, Shibayama S, Takeda M, Yokoyama A (2008) Ceram Eng Sci Proc 24(4):217–223

    Google Scholar 

  8. Ishikawa T, Kohtoku Y, Kumagawa K, Yamamura T, Nagasawa T (1998) Nature 391:773–775

    Article  CAS  Google Scholar 

  9. Lipowitz J, Rabe JA, Ngugen KT, Orr LD, Androl RR (1995) Ceram Eng Sci Proc 16(4):55–62

    Article  CAS  Google Scholar 

  10. Gouadec G, Colombou P (2001) J Eur Ceram Soc 21(9):1249–1259

    Article  CAS  Google Scholar 

  11. Jones RE, Petrak D, Rabe J, Szweda A (2000) J Nucl Mater 283–287(Part 1):556–559

    Article  Google Scholar 

  12. Yajima S, Hayashi J, Omori M (1975) Chem Lett 931–934

  13. Yajima S, Hayashi J, Omori M, Okamura K (1976) Nature 261:683–685

    Article  CAS  Google Scholar 

  14. Takeda M, Saeki A, Sakamoto J, Imai Y, Ichikawa H (1999) Compos Sci Technol 59:787–792

    Article  CAS  Google Scholar 

  15. Chollon G, Aldacourrou B, Capes L, Pailler R, Naslain R (1998) J Mater Sci 33:901–911

    Article  CAS  Google Scholar 

  16. Ishikawa T, Kohtoku Y, Kumagawa K (1998) J Mater Sci 33(1):161–166

    Article  CAS  Google Scholar 

  17. Yu Y, Tai J, Tang X, Guo Y, Tang M, Li X (2000) Compos A 39:1101–1105

    Article  Google Scholar 

  18. Yajima S, Hasegawa Y, Hayashi J, Iimura M (1978) J Mater Sci 13:2569–2576

    Article  CAS  Google Scholar 

  19. Cheng X, Xie Z, Song Y, Xiao J, Wang Y (2006) J Appl Polym Sci 99(3):1188–1194

    Article  CAS  Google Scholar 

  20. Yajima S, Hasegawa Y, Okamura K, Matsuzawa T (1978) Nature 273:525–527

    Article  CAS  Google Scholar 

  21. Shukla SK, Tiwari RK, Ranjan A, Saxena AK, Mathur GN (2004) Thermochim Acta 424:209–217

    Article  CAS  Google Scholar 

  22. Yajima S, Liaw C, Omori M, Hayashi J (1976) Chem Lett 435–436

  23. Chen J, He G, Liao Z, Zeng B, Ye J, Chen L, Xia H, Zhang L (2008) J Appl Polym Sci 108(5):3114–3121

    Article  CAS  Google Scholar 

  24. Ly HQ, Taylor R, Day RJ, Heatley F (2001) J Mater Sci 36:4037–4043

    Article  CAS  Google Scholar 

  25. Zheng C, Li X, Wang H, Zhu B (2006) Trans Nonferr Met Soc China 16(1):44–48

    Article  CAS  Google Scholar 

  26. Mao XH, Song YC, Li W, Yang DX (2007) J Appl Polym Sci 105(3):1651–1657

    Article  CAS  Google Scholar 

  27. Kalyon DM, Kovenklioglu S (1987) Adv Polym Technol 7(2):191–199

    Article  CAS  Google Scholar 

  28. Mishra R, Tiwari RK, Saxena AK (2009) J Inorg Organomet Polym 19:223–227

    Article  CAS  Google Scholar 

  29. Gupta RK, Mishra R, Mukhopadhyay K, Tiwari RK, Ranjan A, Saxena AK (2009) Silicon 1(2):125–129

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Defence Materials and Stores Research and Development Establishment, DMSRDE Post Office, G.T. Road, Kanpur, 208013, India

    Rakesh Kumar Gupta, Raghwesh Mishra, Rajesh K. Tiwari, Ashok Ranjan & Arvind Kumar Saxena

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  1. Rakesh Kumar Gupta
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  2. Raghwesh Mishra
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  3. Rajesh K. Tiwari
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  4. Ashok Ranjan
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  5. Arvind Kumar Saxena
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Correspondence to Arvind Kumar Saxena.

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Gupta, R.K., Mishra, R., Tiwari, R.K. et al. Studies on the Rheological Behavior of Polycarbosilane Part I: Effect of Time, Temperature and Atmosphere. Silicon 3, 27–35 (2011). https://doi.org/10.1007/s12633-010-9054-7

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  • DOI: https://doi.org/10.1007/s12633-010-9054-7

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